The Federal Signal 3T22 and 2T22 are dual-tone, mechanical outdoor warning sirens made by Federal Signal Corporation (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. Both have a very recognizable design, with a ten-port rotor (chopper) on the bottom with ten cones (horns) and a 12-port one on top with twelve cones.

2025年3月21日 · The Model 2T22 and Model 3T22 are simple vertical dual rotor sirens, with 15-inch rotors/stators on each side of a dual shaft AC electric motor, with the top rotor being 12-port and the bottom rotor being 10-port.

The Federal Signal 3T22 / 2T22 was an outdoor warning siren made by Federal Signal Corporation (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. It has a very recognizable design, having a ten-port rotor (chopper) on the bottom with ten cones (horns) and a 12-port one on top with twelve cones. History.

The Federal Thunderbolt 1003 and 3T22 are capable of coding the "Fire" signal using air valves to alternately cycle on and off the air flow through the high and low tones of their dual tone rotors. The 3T22 used air valving on the air intakes of the upper and lower siren rotors.

On this page I try to explain how the Federal 3T22 and Thuderbolt 1003 sirens work. These two sirens are capable of doing and extra "Fire" signal because they can switch their high and low …

2021年1月1日 · The only dimensions I don't know are the intake cone length and diameter (diameter seems to be the same as the motor), motor length/diameter, and the height of each chopper/rotor section (though its probably not much bigger than the aforementioned 4 1/2")

2010年8月9日 · Here's the tag from my 3T22B. The specs would be the same for the 2T22B but minus the dampers/solenoids obviously which are powered speeratly. If your looking to run one from home a 60 amp central AC power supply will work just fine. You can also get a good growl on 110VAC but I'd make it brief as it could damage the motor if run too long.

2013年5月29日 · We have a 3T22 siren that will no longer run. It is need of brushes. I have found numerous posts on this site about them needing/being replaced as well as user manuals detailing the process. However I cannot find a reference to a supplier of these brushes.

The fire circuit in the AF timer would activate a cycling switch in the RCM 3 control cabinet (Thunderolt) or the RC6 (3T22) which would operate the Hi-Lo signal of the siren. An explanation of the fire signal operation is shown on the Federal Siren Pictures page.

The Federal Signal 3T22 / 2T22 is a dual tone, mechanical outdoor warning siren once made by Federal Signal Corporation (formerly Federal Sign and Signal Corporation) from 1952 through the early 1990s. It has a very recognizable design, having a ten-port rotor (chopper) on the bottom with ten cones (horns) and a 12-port one on top with twelve ...